package demo3;

public class Tect {
    public static void main(String[] args) {
        OutClass1.InClass1 inClass1= new OutClass1.InClass1();
        //方法一
        OutClass2.InClass inClass2 = new OutClass2().new InClass();
        //方法二
        OutClass2 outClass2 = new OutClass2();
        OutClass2.InClass inClass3 =   outClass2.new InClass();
        inClass2.data4
    }
}
